- Juana, of Austria, Princess of Portugal, 1535-15731
- Lafões, Pedro Henrique de Bragança, Duque de, 1718-17611
- Law✖[remove]151
- Law reports, digests, etc.1
- Law, Medieval1
- Lawyers1
- Liturgics2
- Manners and customs1
- Manuel I, King of Portugal, 1469-15211
- Manuscript waste1
- Manuscripts1
- Manuscripts, Dutch1
- Manuscripts, European4
- Manuscripts, French1
- Manuscripts, Italian5
- Manuscripts, Latin6
- Manuscripts, Latin (Medieval and modern)5
- Manuscripts, Medieval4
- Manuscripts, Portuguese1
- Manuscripts, Renaissance16